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Infineum International Limited patents


Recent patent applications related to Infineum International Limited. Infineum International Limited is listed as an Agent/Assignee. Note: Infineum International Limited may have other listings under different names/spellings. We're not affiliated with Infineum International Limited, we're just tracking patents.

ARCHIVE: New 2018 2017 2016 2015 2014 2013 2012 2011 2010 2009 | Company Directory "I" | Infineum International Limited-related inventors


Magnesium sulfonate synthesis

An overbased magnesium sulfonate detergent is made by (a) preparing a mixture of a sulfonic acid or salt with a magnesium oxide, water, a c1-c5 alkanol, a hydrocarbon solvent, and a combination of a polyisobutene succinic anhydride of molecular weight (mw) 500 to 1500 g mol−1 and a salicylic acid as first and second promoters; and (b) carbonating the mixture with an acidic gas to form the overbased magnesium sulfonate.. . ... Infineum International Limited

Lubricating oil additives

A metal-containing detergent, suitable for use as a lubricant additive, in the form of a concentrate in oil in which a basic metal-containing material is maintained in dispersion or solution in the oil by a gemini surfactant system comprising, or being derivable or derived from, a double bond-unsaturated carboxylic acid having 8 to 30 carbon atoms, the double bond or bonds of which being functionalized to carry polar groups across or on the double bond or bonds and the carboxylic acid group or groups thereof being functionalized to become an amide or ester group carrying at least one alkyl group having 4 to 20 carbon atoms.. . ... Infineum International Limited

Lubricating oil compositions

A crankcase lubricating oil composition for the crankcase of a spark-ignited or compression-ignited internal combustion engine, comprising a magnesium-containing detergent, in an amount sufficient to provide from 200-4000 ppm magnesium to the lubricating oil composition, in combination with an oil-soluble or oil-dispersible molybdenum compound in an amount sufficient to provide from 600-1500 ppm molybdenum atoms to the lubricating oil composition, and with an oil-soluble or oil-dispersible boron-containing compound in an amount sufficient to provide from 200-600 ppm boron atoms to the lubricating oil composition to improve the friction and fuel economy performance.. . ... Infineum International Limited

Highly borated dispersant concentrates for lubricating oil compositions and methods for forming same

. . A process for producing a borated polyalkenyl succinimide dispersant composition in which the boron is incorporated primarily as cyclic metaboric acid moieties and the equivalents of boron incorporated per equivalent of nitrogen in the succinimide carrier is greater than 2; in which process a slurry of orthoboric acid is added to a polyalkenyl succinimide to form a reaction mixture, which reaction mixture is then heated under conditions (at a temperature and pressure and for a time) sufficient to remove from the reaction mixture from about 0.8 to about 1.2 moles of water of reaction per mole of boric acid charged.. . ... Infineum International Limited

Additive concentrates

. . The use of polyalkylenyl succinic anhydrides to stabilize an additive concentrate which includes a salicylate detergent and a nitrogen-free ashless organic friction modifier.. . ... Infineum International Limited

Additive concentrates

The use of polyalkylenyl succinic anhydrides to stabilise an additive concentrate which includes a salicylate detergent and a nitrogen-free ashless organic friction modifier.. . ... Infineum International Limited

Additive concentrates

The use of berated dispersant, preferably in combination with polyalkylenyl succinic anhydrides, to stabilise an additive concentrate which includes a salicylate detergent and a nitrogen-free ashless organic friction modifier.. . ... Infineum International Limited

Viscosity index improver concentrates

A viscosity index improver containing, in diluent oil, one or more optionally functionalized linear block copolymers having at least one block derived from alkenyl arene covalently linked to at least one block derived from diene in an amount that is greater than the critical overlap concentration (ch*), in mass %, for the linear block copolymers in the diluent oil; and ester base stock and/or at least one star (or radial) polymer, the star polymer being present in an amount such that the c/ch* value of the star polymer in the concentrate falls within the range of from 0.01 to about 1.6, wherein c is the concentration in mass % of star polymer in the concentrate and ch* is the critical overlap concentration in mass % for the star polymer in the diluent oil used to form the concentrate.. . ... Infineum International Limited

Additive concentrates for the formulation of lubricating oil compositions

A lubricant additive concentrate containing (i) dispersant that is the polybutenyl succinimide reaction product of a polyamine and polybutenyl succinic anhydride (pibsa) derived from polybutene having a number average molecular weight (mn) of from about 1300 to about 2500 daltons and a terminal vinylidene content of at least about 50% and maleic anhydride via an ene maleation process; (ii) overbased magnesium colloidal detergent having a total base number (tbn) of from about 300 to about 900 mg koh/g; and (iii) organic friction modifier selected from hydroxyalkyl alkyl amines of c14 to c24 hydrocarbons, at least one hydroxyalkyl alkyl ether amines of c13 to c24 hydrocarbons, at least one alkyl ester amine derived from triethanol amine having a c13 to c24 hydrocarbyl substituent, at least one non-basic, fatty acid amide, or a mixture thereof; wherein the combined mass % of dispersant (i) and overbased magnesium colloidal detergent (ii) in said concentrate is from about 15 to about 50 mass %: the mass ratio of (i):(ii) is from about 1:1 to about 6:1; and the concentrate contains from about 2 to about 10 mass % of organic friction modifier (iii); the remainder of the concentrate being composed of base oil and additives other than dispersant (i), overbased magnesium colloidal detergent (ii) and organic friction modifier (iii).. . ... Infineum International Limited

Additives for fuels and oils comprising functionalised diblock copolymers

Concentrates containing specific functionalised diblock copolymers serve as effective additives for improving the cold flow behaviour of fuels and oils, the copolymers being derived from a terminally-unsaturated intermediate polymer obtained via a metallocene process involving hydrogen.. . ... Infineum International Limited

Additive concentrates for the formulation of lubricating oil compositions

. . A lubricant additive concentrate containing 30 to 80 mass % oil of lubricating viscosity and from 20 to 70 mass % of additive; wherein from 30 to 90 mass % of the additive is (i) hybrid overbased colloidal detergent derived from sulfonate surfactant and hydroxybenzoate surfactant; and (ii) polyalkenyl succinimide dispersant derived from a polyalkene having a number average molecular weight (mn) of from 1300 to 2500 daltons, and wherein the mass ratio of polyalkenyl succinimide dispersant (ii) to hybrid overbased colloidal detergent (i) in the lubricant additive is from 25:1 to 1:1.. . ... Infineum International Limited

Dispersant additives and additive concentrates and lubricating oil compositions containing same

. . A lubricant additive concentrate having a kinematic viscosity of from about 40 to about 300 cst at 100° c., containing a dispersant-detergent colloid complex, including a polybutenyl succinimide dispersant that is the reaction product of a polyamine and polybutenyl succinic anhydride (pibsa) derived from polybutene having a number average molecular weight (mn) of from about 1300 to about 2500 and a terminal vinylidene content of at least about 65%, and succinic and/or maleic anhydride via an ene maleation process, the pibsa having a succinic anhydride (sa) functionality (f) of greater than 1.7 and less than about 2.5; and a detergent colloid including overbased detergent having a total base number (tbn) of from about 370 to about 1000 mg koh/g derived from one or more surfactants selected from (i) sulfonate; (ii) phenate; and (iii) carboxylate surfactant; in which the mass ratio of the dispersant to the overbased detergent colloid in the concentrate is from about 0.5 to about 5.0; and the dispersant and overbased colloidal together constitute at least 28 mass %, of the concentrate.. . ... Infineum International Limited

Additive package for marine engine lubrication

. . An additive package for a two- or four-stroke marine engine lubricant comprises an oil of lubricating viscosity, a salicylate detergent and a sulfonate detergent in a ratio of 90/10 to 10/90 (expressed as mmol of soap), and 1 to 10 mass % of a hydrocarbylphenol-aldehyde condensate.. . ... Infineum International Limited








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